A metallic mosaic phase and the origin of Mott-insulating state in 1T-TaS2

Abstract

In correlated materials, new phases emerge when the balance between many-body interactions is perturbed. Here, Ma et al. induce a mosaic charge-density-wave phase out of Mott insulating state in layered 1T-TaS2by voltage pulses, which reveals a dominating role of interlayer stacking order.